Using A Catalyst Patents (Class 60/299)
  • Patent number: 10363937
    Abstract: A control device for a vehicle includes a failure detector to detect failure in a cooling device to cool an internal combustion engine of the vehicle. An acceleration operation sensor is to detect an acceleration operation amount indicating a target acceleration. Circuitry is configured to control a power output from the internal combustion engine in accordance with the acceleration operation amount, control an air fuel ratio of air-fuel mixture in the internal combustion engine to be in a richer side with respect to a predetermined air fuel ratio if the acceleration operation amount exceeds a high load threshold, limit the power output from the internal combustion engine if the failure detector detects the failure, and prohibit the air fuel ratio from being controlled to be in the richer side even if the acceleration operation amount exceeds the high load threshold if the failure detector detects the failure.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: July 30, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Taku Yamazaki
  • Patent number: 10364764
    Abstract: Systems and methods for a turbocharged engine comprising an exhaust gas recirculation (EGR) valve and an EGR valve differential pressure sensor disposed in a low pressure EGR (LPEGR) system of the engine and a differential pressure (dP) valve that is distinct from a throttle valve and a dP valve outlet pressure sensor disposed in an induction system of the engine utilize a controller configured to, based on the sensed pressures, determine (i) a modeled pressure at the EGR pickup, (ii) a modeled pressure at outlet of an EGR cooler, (iii) a modeled pressure at an outlet of an air filter and (iv) a modeled pressure at the dP valve outlet, and control the dP valve and the EGR valve based on the modeled EGR pickup pressure, the modeled EGR cooler outlet pressure, the modeled air filter outlet pressure, and the modeled dP valve outlet pressure.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: July 30, 2019
    Assignee: FCA US LLC
    Inventors: Shu Wang, Ethan Bayer, William P Attard
  • Patent number: 10280825
    Abstract: A multi-cylinder engine exhaust structure disclosed herein includes: four branched exhaust pipes respectively communicating with four cylinders classified into two groups, each being comprised of two of the four cylinders with discontinuous exhaust strokes; two intermediate collecting pipes, each being formed by combining associated two of the four branched exhaust pipes respectively communicating with the two cylinders in an associated one of the two groups; a last collecting pipe formed by combining these intermediate collecting pipes; and an exhaust gas purifier coupled to an exhaust gas downstream end of the last collecting pipe.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: May 7, 2019
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Taku Kuramashi, Ryota Joya, Tomonori Nishida
  • Patent number: 10267206
    Abstract: In inline four cylinder internal combustion engine (1), exhaust ports for a #2 cylinder and a #3 cylinder merge inside cylinder head (3) and form an opening serving as a single collective exhaust port. Exhaust manifold (5) has individual exhaust pipes (6, 7) for #1 and #4 cylinders and collective exhaust pipe (8), and the leading ends of these three exhaust pipes (6, 7, 8) are connected to catalytic converter (11). Exhaust gas introduction angle (?2) of each of individual exhaust pipes (6, 7) is larger by 30-60 degrees than exhaust gas introduction angle (?1) of collective exhaust pipe (8). Consequently, flow velocity distribution and temperature distribution in a catalyst carrier become uniform.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: April 23, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takayuki Hamamoto, Takanobu Sugiyama, Hidehiro Fujita
  • Patent number: 10240507
    Abstract: In an in-line four-cylinder internal combustion engine, exhaust ports (2b, 2c) of cylinders #2 and #3 merge together inside a cylinder head and become open as one flat collective exhaust port (2bc). An exhaust manifold (5) includes separate individual exhaust pipes (6, 7) for cylinders #1 and #4 and a collective exhaust pipe (8) for cylinders #2 and #4. Tip ends of these three exhaust pipes are connected to a catalytic converter (11). An equivalent diameter of the collective exhaust port (2bc) is larger than equivalent diameters of the exhaust ports (2a, 2d) before merging. A short diameter of the collective exhaust port (2bc) is smaller than or equal to the equivalent diameters of the exhaust ports (2b, 2c).
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: March 26, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takanobu Sugiyama, Hidehiro Fujita, Takayuki Hamamoto, Yuta Kanashima
  • Patent number: 10184411
    Abstract: Rich control is performed to hold an air-fuel ratio of an exhaust gas discharged from an engine combustion chamber temporarily richer than the stoichiometric air-fuel ratio by injecting additional fuel into a cylinder in an expansion stroke or exhaust stroke while an exhaust gas recirculation rate is made lower than a base exhaust gas recirculation rate. A variable valve timing mechanism able to change an overlap period is provided. When ending rich control (ta2), the injection of additional fuel is stopped and the overlap period (OL) is increased from a base overlap period (OLB) and held there while an EGR rate (REGR) is kept lower than a base EGR rate (REGRB) and when a delay time (dt) elapses, the EGR rate and the overlap period are reset to the base EGR rate and the base overlap period.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: January 22, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yoshito Nogi
  • Patent number: 10161278
    Abstract: A catalyst arrangement for use with a selective catalytic reduction system includes a frame and a plurality of catalyst elements coupled to the frame. The plurality of catalyst elements is arranged vertically among a plurality of vertical stations. The plurality of vertical stations is successively defined along a height of the catalyst arrangement. The catalyst elements of at least one of the vertical stations are arranged at a plurality of axial positions with respect to an axial direction of a flow of exhaust gases through the selective catalytic reduction system.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: December 25, 2018
    Assignee: General Electric Company
    Inventors: Rajesh Prabhakaran Saraswathi, Bradly Aaron Kippel
  • Patent number: 10030282
    Abstract: This ferritic stainless steel sheet contains, by mass %: C: 0.02% or less, N: 0.02% or less, Si: 0.05% to 0.80%, Mn: 0.05% to 1.00%, P: 0.04% or less, S: 0.01% or less, Cr: 12% to 20%, Cu: 0.80% to 1.50%; Ni: 1.0% or less, Mo: 0.01% to 2.00%, Nb: 0.30% to 1.00%, Ti: 0.01% to less than 0.25%, Al: 0.003% to 0.46%, V: 0.01% to less than 0.15%, and B: 0.0002% to 0.0050%, with a remainder of Fe and inevitable impurities, wherein the following formulae (1) and (2) are satisfied, and an average Cu concentration in an area from a surface to a depth of 200 nm is 3.00% or less, in the case of Mn<0.65%, 1.44×Si?Mn?0.05?0??(1), and in the case of Mn?0.65%, 1.10×Si+Mn?1.19?0??(2).
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: July 24, 2018
    Assignee: NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION
    Inventors: Atsutaka Hayashi, Yoshiharu Inoue, Nobuhiko Hiraide
  • Patent number: 9874131
    Abstract: A pump module includes: a pump that is installed at the inside of a storage tank in order to discharge a liquid that is stored at the inside of the tank to the outside of the tank; a flange that is coupled to one side of the tank in order to couple the pump to the tank; a heater that is located on the flange so as to enclose a lower portion of the pump; a cover that covers an upper portion of the pump in order to couple the heater to the flange; and a filter that is coupled to the flange so as to enclose the pump, the cover, and the heater and that filters the liquid that is supplied to the pump.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: January 23, 2018
    Assignees: Hyundai Motor Company, Hyundam Industrial Co., Ltd.
    Inventors: Bu Yeol Ryu, Pil Seon Choi, Chan Yo Jeon, Bu Hyeon Cho, Yong Taek Hwang
  • Patent number: 9809954
    Abstract: A bulldozer includes a blade, an engine, first and second exhaust treatment devices that treat exhaust from the engine, and an engine cover. The first exhaust treatment device is disposed in front of the engine and lower than a first upper surface of the engine. The second exhaust treatment device is disposed above the engine. The engine cover includes a second upper surface sloping forward and downward. The engine cover covers the engine and the first and second exhaust treatment devices. Longitudinal directions of the first and second exhaust treatment devices extend along a vehicle lateral direction. In a top view of the bulldozer, the second exhaust treatment device includes a portion overlapping the engine. As seen from a side of the bulldozer, a front edge of the second exhaust treatment device is positioned forward of a rear edge of the first exhaust treatment device.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: November 7, 2017
    Assignee: KOMATSU LTD.
    Inventor: Akira Uno
  • Patent number: 9803533
    Abstract: A tractor according to an embodiment of the present invention includes a front wheel, a rear wheel, a hood that covers an engine, and an exhaust gas treatment unit. The exhaust gas treatment unit is placed laterally outside right or left side of the hood and behind the front wheel, and purifies exhaust gas from the engine. A circular cylindrical heat shielding plate covers an outer circumferential surface of the exhaust gas treatment unit. A plurality of vent holes are formed in a rear surface of the heat shielding plate, and are not formed in a region that lies on a front surface of the heat shielding plate and faces the front wheel.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: October 31, 2017
    Assignee: ISEKI & CO., LTD.
    Inventors: Ryota Nagano, Shinya Yoshiki, Tatsuzo Murakami, Yoshitaka Takechi, Erina Tamura
  • Patent number: 9726059
    Abstract: An exhaust system includes at least one exhaust gas purification component, at least one exhaust line, at least one connecting device for connecting the exhaust system to an internal combustion engine of a motor vehicle and at least one fastening element for additionally fastening the exhaust system to the motor vehicle. The purification component can oscillate at a first resonance frequency range of less than 150 Hz in a fastened state. The purification component can oscillate due to vibrations of the engine at least when the engine is started or switched off. This, in particular, allows ash residues to be removed from a purification component during starting of the motor vehicle, so that maintenance expense for the purification component is reduced and effective operation thereof is possible over the long term. A motor vehicle having an exhaust system and a method for operating the motor vehicle are also provided.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: August 8, 2017
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Wolfgang Maus, Rolf Brueck, Klaus Mueller-Haas
  • Patent number: 9708949
    Abstract: An exhaust aftertreatment system for purifying exhaust gases from a compression-ignition engine includes a first exhaust aftertreatment device including an oxidation catalyst and a particulate filter element fluidly coupled to an exhaust outlet of the engine. A second exhaust aftertreatment device includes an ammonia-selective catalytic reduction catalyst fluidly coupled to a downstream outlet of the first exhaust aftertreatment device. A reductant injection system is configured to inject urea reductant into the exhaust gas feedstream between the first exhaust aftertreatment device and the second exhaust aftertreatment device.
    Type: Grant
    Filed: June 14, 2014
    Date of Patent: July 18, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Gongshin Qi, John T. Johnson, Wei Li
  • Patent number: 9683475
    Abstract: To elongate an exhaust tail pipe wherein a muffler is covered by a rear cowl. An exhaust structure of a vehicle including a rear cowl covering a vehicle rear portion, a rear bank-muffler including a first and second expansion chamber partitioned by a partition, a first and second connecting pipe connecting the expansion chambers, and a tail pipe configured to discharge exhaust air from the rear bank-muffler. The rear bank-muffler is covered by the rear cowl, wherein outlines of the rear bank-muffler and the rear cowl are each formed such that the width decreases toward the vehicle rear. The tail pipe, the first connecting pipe, and the second connecting pipe are provided so as to penetrate the partition. A position where the tail pipe penetrates the partition and positions where the first connecting pipe and second connecting pipe penetrate the partition are offset from each other in the vertical direction.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: June 20, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Katsuaki Shibuki, Masaya Yazaki, Satoru Nojima
  • Patent number: 9664101
    Abstract: An exhaust treatment system includes first and second exhaust conduits positioned on opposite ends of an exhaust treatment device. The exhaust treatment device includes a housing having a first outer diameter at a first end and a different second outer diameter at a second end. A clamp includes an inner surface engaging both the first exhaust conduit and the exhaust treatment device when the exhaust treatment device is positioned with its first end adjacent to the first exhaust conduit. The inner surface of the clamp is spaced apart from one of the housing and the exhaust treatment device when the second end of the exhaust treatment device is adjacent the first exhaust conduit.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: May 30, 2017
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Michael Golin, Rick Thompson
  • Patent number: 9598999
    Abstract: An exhaust treatment device is disclosed. The exhaust treatment device has a compact configuration that includes integrated reactant dosing, reactant mixing and contaminant removal/treatment. The mixing can be achieved at least in part by a swirl structure and contaminant removal can include NOx reduction.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: March 21, 2017
    Assignee: Donaldson Company, Inc.
    Inventors: Korneel De Rudder, Stephane Le Merdy, Bart Schellens, Nic Degelin, Corine Chauvin, Jeffrey Curtis Gillen
  • Patent number: 9587550
    Abstract: A component of an exhaust system for a combustion engine, particularly of a motor vehicle, has a hollow jacket at least partially surrounding the component. An intermediate space is surrounded by the walls of the hollow jacket and is closable in a pressure-tight manner. The intermediate space is fluidically connected to a vacuum generating device via a vacuum connection line and via a vacuum connection point of the component. With the vacuum generating device, a vacuum can be generated in the intermediate space. Through arrangement of a filler material, such as a support structure and/or of a fiber material and/or of a foam, in the intermediate space the stability of the hollow jacket can be improved.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: March 7, 2017
    Assignee: Eberspächer Exhaust Technology GMBH & CO. KG
    Inventor: Gerd Gaiser
  • Patent number: 9573459
    Abstract: An exhaust pipe cover structure for a saddle-ride type vehicle allows an exhaust pipe cover to be easily positioned and attached even in the case of attaching the exhaust pipe cover to an exhaust pipe attached to an engine. Boss portions each having an internal thread through which an exhaust pipe cover is fastened are provided on a lateral surface of an exhaust pipe. Hooking holes capable of being hooked on the boss portions with play are integrally provided on the inner side of the exhaust pipe cover. In a state where the hooking portions are hooked on the boss portions, part of the boss portions is viewable through attaching holes of the exhaust pipe cover.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: February 21, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Nobuyuki Shimomura
  • Patent number: 9517457
    Abstract: Systems, apparatus and methods are disclosed for reducing the amount of nitrous oxide (N2O) produced in a selective catalytic reductant (SCR) catalyst in an exhaust aftertreatment system. The SCR catalysts are arranged to reduce the amount of N2O produced during NOx reduction while not adversely affecting NOx conversion.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: December 13, 2016
    Assignee: Cummins Inc.
    Inventors: Krishna Kamasamudram, Neal W. Currier, Ashok Kumar
  • Patent number: 9505301
    Abstract: An engine device in which a first case and a second case can be installed in a compact manner while preventing a decrease of temperature of the first case and the second case due to cooling air for an engine. The engine device is equipped with the first case for removing particulate matter in exhaust gas of the engine, and the second case for removing nitrogen oxide in the exhaust gas of the engine. The first case and the second case are disposed on the upper surface side of the engine at a position higher than an air flow path of a cooling fan of the engine. The second case is disposed at a position higher than the first case.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: November 29, 2016
    Assignee: Yanmar Co., Ltd.
    Inventor: Yoshiyuki Sandou
  • Patent number: 9366174
    Abstract: A safety device for operating a catalytic converter, including: a heat screen installed substantially on a portion of an outer wall of the catalytic converter, and including an opening through which a measuring device attached onto the catalytic converter is to pass, the measuring device including a substantially cylindrical base configured to engage with the catalytic converter; a safety device to be arranged on the heat screen, the safety device including a plate including a circular opening having a diameter that is greater than a diameter of a base, the opening being delimited by a lip; and a device for attaching the plate to the heat screen such that the lip surrounds the base with a minimum clearance.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: June 14, 2016
    Assignee: RENAULT s.a.s.
    Inventors: Pascal Hottebart, Jean-Luc Gateau
  • Patent number: 9341096
    Abstract: An exhaust gas treatment device includes at least a housing and a second exhaust gas treatment unit which is disposed at a distance from the housing and extends into the housing. The housing has an opening that is disposed laterally relative to the second exhaust gas treatment unit and extends laterally at least across 50% of the second exhaust gas treatment unit which extends into the housing. A motor vehicle having the exhaust gas treatment device is also provided.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: May 17, 2016
    Assignee: Emitec Gesellschaft fuer Emissiontechnologie mbH
    Inventors: Rolf Brueck, Conny Johansson, Mats Laurell
  • Patent number: 9228477
    Abstract: An exhaust system, for a vehicle driven by an internal combustion engine, has a system for removing condensate (141) that includes a first line section (110) for fluid connection with exhaust gas (160), at least one second line section (120) for fluid connection with exhaust gas (160), and at least one suction line (130; 131; 132; 136; 137; 138). The suction line (130; 131; 132; 136; 137; 138) is disposed between the bottom (124) of the at least one second line section (120) and the first line section (110), and includes an opening (135) configured to be passed over by exhaust gas (160) passing through the first line section (110).
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: January 5, 2016
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Peter Wink, Michael Pommerer
  • Patent number: 9227677
    Abstract: An underbody trim for the rear-end region of a motor vehicle conceals a rear exhaust muffler. For the purposes of cooling the rear exhaust muffler, an air inlet is provided in the underbody trim. The air inlet is arranged in a region in which, while the motor vehicle is traveling, a pressure is higher at the underside of the underbody trim than the region of the floor panel arranged thereabove. Cooling ambient air is thus conducted into the region of the rear exhaust muffler with low flow losses.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: January 5, 2016
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Mats Stefan Hillstroem, Ioannis Dimitriou, Jochen Mayer, Stefan Meszaros, Christian Seitz
  • Patent number: 9222392
    Abstract: The present invention relates to an exhaust gas treatment device for an exhaust system of a combustion engine, more preferably of a motor vehicle with a housing comprising a jacket and an outlet funnel, with at least one exhaust gas treatment element which is arranged in the jacket and which via a support ring is axially supported on the housing, wherein the outlet funnel comprises an outer funnel and an inner funnel. A simplified design is obtained if the outer funnel at an inner end facing the jacket is connected to the jacket in a fixed manner and at an outer end facing away from the jacket is connected in a fixed manner to the inner funnel, and if between the inner funnel and the outer funnel an insulation space circumferentially running in circumferential direction is formed and the inner funnel at an inner end facing the jacket carries the support ring and relative to the outer funnel is at least axially loose.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: December 29, 2015
    Assignee: Eberspaecher Exhaust Technology GmbH & Co. KG
    Inventors: Roland Schwarz, Johannes Grupp, Marco Wenz
  • Patent number: 9217348
    Abstract: An exhaust gas purification device for purifying exhaust gas flowing through an exhaust gas channel of an engine includes fins installed in the exhaust gas channel to guide the exhaust gas to generate a swirling flow; and an injection device configured to inject a reducing agent to the swirling flow of the exhaust gas. The fins are expanded and opened toward a downstream side of an injection direction of the reducing agent so as to surround an injection region of the reducing agent.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: December 22, 2015
    Assignee: Hino Motors, Ltd.
    Inventor: Masahiro Kimura
  • Patent number: 9169757
    Abstract: A mixer/evaporator or an exhaust system (5) of an internal combustion engine (1), includes a carrier (20) surrounding, in a circumferential direction, a flat cross section of a mixing/evaporating device (12), through which exhaust gases flow and which extends at a right angle to the axial direction (17). The carrier has opposite side walls, wherein short side walls (23, 24) connect each long side walls (21, 22) to one another. Guide blades (25) project in a direction of the respective opposite long side wall, are set at an angle in relation to the axial direction and are arranged at one of the long side walls at least one axial end (26, 27). An axial end of the first long side walls is offset in the axial direction in relation to the axial end of the second long side wall on the same side of the mixing/evaporating device.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: October 27, 2015
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventor: Silvia Calvo
  • Patent number: 9162182
    Abstract: An exhaust-gas cleaning device for an internal combustion engine has a catalytic converter arrangement. The catalytic converter arrangement includes, along the flow direction, a plurality of catalytically active regions which are, in particular, independent of one another. A heat dissipation device includes a heat absorbing device and one heat sink. The heat absorbing device is provided between at least two catalytically active regions. The heat absorbing device is connected to the heat sink. The exhaust-gas cleaning device includes a plurality of catalytic converter arrangements, an, in particular tubular, inner housing with a housing cover, and an outer housing which encloses the inner housing. The inner housing has a longitudinal axis, and the catalytic converter arrangements are arranged separately from one another on the housing cover of the inner housing.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: October 20, 2015
    Assignee: GE JENBACHER GMBH & CO OG
    Inventor: Friedrich Gruber
  • Patent number: 9140155
    Abstract: A modular exhaust system is disclosed for treating the exhaust from a fossil fuel powered prime mover; the exhaust system includes bricks, inserts placed inside of the bricks and funnels to direct exhaust through various flow paths in order to treat the exhaust.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: September 22, 2015
    Assignee: Caterpillar Inc.
    Inventors: Mary Jill Trumper, Christopher A. Willey, Kris E. Seitz, Andrew D. Hill, Thomas N. Brooks, Jr., Troy A. Shawgo
  • Patent number: 9114363
    Abstract: A catalyst system may include a three-way catalyst that may receive exhaust gases from an engine and convert the exhaust gases to first converted exhaust gases. An ammonia slip catalyst may receive the first converted exhaust gases and convert the first converted exhaust gases to second converted exhaust gases. A hydrocarbon oxidation catalyst may receive the second converted exhaust gases and convert the second converted exhaust gases to third converted exhaust gases.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 25, 2015
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Maruthi N. Devarakonda
  • Patent number: 9109483
    Abstract: An exhaust system for an internal combustion engine, having a first exhaust tract and a second exhaust tract, wherein a first silencer device is arranged in an end section of the first exhaust tract and a second silencer device is arranged in an end section of the second exhaust tract, and the two exhaust tracts are connected in an inter-communicating manner by a crosstalk point, and, in the first or second exhaust tract downstream of the crosstalk point, there is provided a valve for the selective closure of the respective exhaust tract, wherein a distance between the valve and the crosstalk point is dimensioned such that, at a particular rotational speed of the engine, an exhaust line path between the valve and the crosstalk point serves as a quarter lambda resonator such that, at the rotational speed of the internal combustion engine, disturbing noises of the exhaust system are reduced.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: August 18, 2015
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventor: Joerg Winkel
  • Patent number: 9061245
    Abstract: An exhaust gas aftertreatment system, in particular for V-type diesel engines, is provided. The system includes, disposed in the exhaust line of the engine in the direction of the exhaust gas flow, a first SCR stage, a catalytically activated particulate filter (cDPF), a second SCR stage, and an ammonia slip catalyst (ASC). A method for purifying diesel engine exhaust gases containing hydrocarbons, carbon monoxide, soot particles, and nitrogen oxides consisting of NO and NO2 is also provided.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: June 23, 2015
    Assignee: Deutz Aktiengesellschaft
    Inventors: Meike Wittrock, Wolfgang Beberdick
  • Publication number: 20150145355
    Abstract: A prime mover assembly is suitable for use in a hazardous environment. The prime mover assembly includes a hazardous rated enclosure, a non-hazardous rated prime mover disposed in the enclosure, and a gland assembly extending through the enclosure in communication with the prime mover. The gland assembly provides power and instrumentation through the enclosure to the prime mover.
    Type: Application
    Filed: May 16, 2013
    Publication date: May 28, 2015
    Inventors: Jesse Kincaid, John Siggelkow
  • Patent number: 9038370
    Abstract: A method for operating an exhaust emission control system of a motor vehicle internal combustion engine, in the exhaust gas line of which an oxidation-catalytically active exhaust emission control component is arranged upstream of a SCR-catalyst is provided. An ageing state of the oxidation-catalytically active exhaust emission control component is determined by correlating a hydrocarbon fraction present in the exhaust emission upstream of the oxidation-catalytically active exhaust emission component with a simultaneous nitrogen oxide conversion of the SCR-catalyst.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: May 26, 2015
    Assignee: Daimler AG
    Inventor: Alexander Massner
  • Patent number: 9038372
    Abstract: In an internal combustion engine, inside an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. The carrier (50) of the exhaust purification catalyst (13) is formed from a crystallized composite oxide of aluminum and an alkali earth metal. On this carrier (50), precious metal catalysts (51, 52) are carried. The concentration of hydrocarbons which flow into the exhaust purification catalyst (13) is made to vibrate by within a predetermined range of amplitude of a 200 ppm or more and within a predetermined range of period of 5 second or less, whereby the NOx which is contained in exhaust gas is reduced at the exhaust purification catalyst (13).
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: May 26, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masao Watanabe, Koutarou Hayashi, Kohei Yoshida, Yuki Bisaiji, Kazuhiro Umemoto
  • Patent number: 9038678
    Abstract: A reductant fill system is provided. A reductant tank is configured to store a reductant. A receiver is configured to receive a supply of the reductant from an off-board reservoir. A first valve is in communication with the reductant tank and is configured to control a reductant flow into the reductant tank. A reductant supply line is in fluid communication with the receiver. The reductant supply line is configured to provide the reductant flow to the first valve. The reductant level sensor is configured to generate a signal based on a level of reductant in the reductant tank. A controller is communicably coupled to the reductant level sensor. The controller is configured to purge a stranded reductant in the reductant supply line, based on the signal generated by the reductant level sensor.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: May 26, 2015
    Assignee: Caterpillar Inc.
    Inventors: Cameron J. Wright, Christopher M. Gruel
  • Publication number: 20150135687
    Abstract: A motorcycle is equipped with a V-type engine in which front and rear cylinders are arranged in a V-shape along a vehicle front and rear direction. An exhaust device includes: a catalyst device disposed on an exhaust downstream side of a collection part of an exhaust pipe of the front cylinder and an exhaust pipe of the rear cylinder; and a connecting pipe via which the exhaust pipe of the front cylinder and the exhaust pipe of the rear cylinder communicate with each other, and the connecting pipe passes through a space between the exhaust pipe of the rear cylinder and the catalyst device.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 21, 2015
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Eiji SASAKI, Yoshisato INAYAMA, Kazuhiro YAMAMOTO
  • Patent number: 9034286
    Abstract: An exhaust system for a compression ignition engine comprising an oxidation catalyst for treating carbon monoxide (CO) and hydrocarbons (HCs) in exhaust gas from the compression ignition engine, wherein the oxidation catalyst comprises: a platinum group metal (PGM) component selected from the group consisting of a platinum (Pt) component, a palladium (Pd) component and a combination thereof; an alkaline earth metal component; a support material comprising a modified alumina incorporating a heteroatom component; and a substrate, wherein the platinum group metal (PGM) component, the alkaline earth metal component and the support material are disposed on the substrate.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: May 19, 2015
    Assignee: Johnson Matthey Public Limited Company
    Inventors: David Bergeal, Andrew Francis Chiffey, John Benjamin Goodwin, Daniel Hatcher, Francois Moreau, Agnes Raj, Raj Rao Rajaram, Paul Richard Phillips, Cathal Prendergast
  • Patent number: 9034267
    Abstract: In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. The exhaust purification catalyst (13) is comprised of a mixture of a first catalyst in which platinum (51) and a basic layer (52) are carried on alumina (50) and a second catalyst in which rhodium (56) is carried on zirconia (55). The concentration of hydrocarbons which flow into the exhaust purification catalyst (13) is made to vibrate by within a predetermined range of amplitude of a 200 ppm or more and within a predetermined range of period of 5 second or less, whereby the NOx which is contained in exhaust gas is reduced at the exhaust purification catalyst (13).
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: May 19, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masao Watanabe, Koutarou Hayashi, Kohei Yoshida, Yuki Bisaiji, Kazuhiro Umemoto
  • Patent number: 9032716
    Abstract: A motor vehicle includes a tank for storing a liquid reducing agent suppliable to the exhaust system of an internal-combustion engine, and an air delivery device, by which an excess pressure can be built-up in a cushion of air situated in the tank above the reducing agent level. Via the air delivery device, alternatively, a vacuum is generatable in the air cushion, which vacuum supports feeding of the agent into the tank. Via the vacuum in the air cushion, reducing agent can also be returned from a pipe, which leads the reducing agent to the exhaust system, back into the tank, and/or additional liquid reducing agent can be transferred from a storage tank by way of a supply duct.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: May 19, 2015
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Joerg Hennecke, Andreas Bruhn
  • Patent number: 9027330
    Abstract: A catalytic muffler for an internal combustion engine of a portable working tool, e.g. a chain saw or a trimmer, having a housing designed to be directly attached to an exhaust port of an engine. The housing further includes a front chamber and a rear chamber divided from each other by an intermediate baffle. The housing further having an inner housing having a first open end constituting the exhaust gas inlet located in the rear chamber. The inner housing includes a catalyst body through which essentially all exhaust gas flows when in use. A second open end of the inner housing is arranged in one of said front and rear chambers and the exhaust gas outlet of the muffler is arranged in the other chamber such that treated gas in use flows through at least one aperture in the intermediate baffle from one chamber to the other.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: May 12, 2015
    Assignee: Husqvarna Aktiebolag
    Inventor: Fredrik Edholm
  • Patent number: 9027333
    Abstract: Methods and systems for reducing hydrocarbon emissions from an internal combustion engine. The engine's exhaust aftertreatment system has at least a particulate matter (soot) filter and means for actively regenerating the particulate matter filter. During operation of the engine, the soot loading state of the particulate matter filter is monitored. The filter is regenerated when required, but the regeneration is controlled so that the particulate matter filter retains a small level of soot loading. This soot “pre-loading” ensures hydrocarbon reduction during the next cold start.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: May 12, 2015
    Assignee: Southwest Research Institute
    Inventors: Gary D. Neely, Darius Mehta
  • Patent number: 9027331
    Abstract: A burner for an exhaust aftertreatment system may include a housing assembly and an ignition device. The housing assembly may include an inner shell surrounded by intermediate and outer shells. The inner shell may at least partially define a combustion chamber. The housing assembly may include an airflow passage having an opening extending through the outer shell. The airflow passage may extend between the outer shell and the intermediate shell as well as between the intermediate shell and the inner shell. The airflow passage may provide fluid communication between the opening and the combustion chamber. The ignition device may be at least partially disposed within the housing assembly and may ignite fuel received from a fuel source and air received from the airflow passage to produce a flame in the combustion chamber. The airflow passage may be in a heat transfer relationship with the flame in the combustion chamber.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: May 12, 2015
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventor: Keith G. Olivier
  • Patent number: 9028761
    Abstract: In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. The exhaust purification catalyst (13) is comprised of an upstream-side catalyst (14a) and a downstream-side catalyst (14b) arranged in series at an interval from each other. The upstream-side catalyst (14b) has a smaller cross-sectional area than the downstream-side catalyst (14b). The concentration of hydrocarbons which flow into the upstream-side catalyst (14a) is made to vibrate by within a predetermined range of amplitude of a 200 ppm or more and within a predetermined range of period of 5 seconds or less, whereby the NOx which is contained in exhaust gas is reduced at the exhaust purification catalyst (13).
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: May 12, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuhiro Umemoto, Kohei Yoshida, Mikio Inoue
  • Patent number: 9028764
    Abstract: An electro-catalytic honeycomb for controlling exhaust emissions, which adopts to purify a lean-burn exhaust, comprises a honeycomb structural body, a solid-oxide layer and a cathode layer. The honeycomb structural body includes an anode, a plurality of gas channels, and a shell. The anode is formed as a backbone, the gas channels are formed inside the backbone for passing the exhaust, and the shell covers an outer surface of the anode. The solid-oxide layer is adhered to an inner surface of the anode and connects the shell so as to encapsulate the anode. The cathode layer is adhered to a tube wall of the solid-oxide layer and has an oxidizing environment. The anode has a reducing environment. The reducing and the oxidizing environment facilitate an electromotive force to occur between the anode and the cathode layer to promote a decomposition of nitrogen oxides of the exhaust into nitrogen and oxygen.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: May 12, 2015
    Inventor: Ta-Jen Huang
  • Patent number: 9021779
    Abstract: The present application thus provides a gas turbine engine system. The gas turbine engine system may include a gas turbine engine, a nitrogen oxides reduction system in communication with a flow of combustion gases downstream from the gas turbine engine, and a nitrogen oxides controller to control the ratio of nitrogen dioxide to nitrogen oxides in the flow of combustion gases entering the nitrogen oxides reduction system.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: May 5, 2015
    Assignee: General Electric Company
    Inventor: Robert Frank Hoskin
  • Patent number: 9021788
    Abstract: In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. At the time of engine operation, the amplitude of change of the concentration of hydrocarbons which flow into the exhaust purification catalyst (13) is made to become within a predetermined range of amplitude by control of the injection amount of hydrocarbons from the hydrocarbon feed valve (15), the concentration of hydrocarbons flowing into the exhaust purification catalyst (13) is made to vibrate by a predetermined range of period by control of the injection period of hydrocarbons from the hydrocarbon feed valve (15), and thereby the NOx contained in the exhaust gas and the NOx stored in the exhaust purification catalyst (13) are reduced.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: May 5, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mikio Inoue, Kohei Yoshida, Yuki Bisaiji, Kazuhiro Umemoto
  • Patent number: 9021785
    Abstract: An engine system for a machine is disclosed. The engine system may have an intake manifold configured to direct air into a donor cylinder and a non-donor cylinder of an engine. The engine system may also have a first exhaust manifold configured to direct exhaust from the non-donor cylinder to the atmosphere. The engine system may also have a second exhaust manifold configured to receive exhaust from the donor cylinder. The engine system may further have a control valve configured to selectively direct a first amount of exhaust from the second exhaust manifold to the intake manifold. In addition, the engine system may have an orifice configured to allow a second amount of exhaust to flow from the second exhaust manifold to the first exhaust manifold.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 5, 2015
    Assignee: Electro-Motive Diesel, Inc.
    Inventors: Keith E. Moravec, Teoman Uzkan
  • Patent number: 9021792
    Abstract: A selective catalytic reduction catalyst capable of reducing the NOx in exhaust gas to N2 is arranged in an exhaust pipe of an engine. Fluid feed has a fluid injecting nozzle facing the exhaust pipe on the exhaust gas upstream side from the selective catalytic reduction catalyst. The fluid feed is configured such that a urea fluid that functions as a reducing agent is fed with the selective catalytic reduction catalyst from the fluid injecting nozzle to the exhaust pipe. Ozone feed includes an ozone injecting nozzle that faces the exhaust pipe on the exhaust gas upstream side from the selective catalytic reduction catalyst, and on the exhaust gas upstream side or the exhaust gas downstream side from the fluid injecting nozzle. The ozone feed is configured such that ozone is fed from the ozone injecting nozzle to the exhaust pipe.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: May 5, 2015
    Assignee: Hino Motors, Ltd.
    Inventors: Mitsuru Hosoya, Yoshihiro Kawada, Shinya Sato
  • Patent number: 9021804
    Abstract: An exhaust system, comprising a LP-EGR system that couples an exhaust system to an intake system and an exhaust pipe within the exhaust system with a turn greater 90 degrees and less than 270 degrees between front and rear tires and upstream of a LP-EGR exhaust inlet; and a muffler positioned in the exhaust system downstream of the LP-EGR exhaust inlet and forward of the front tires. By shortening the LP-EGR path, back pressure to sustain EGR flow can be maintained without the use of a back pressure valve.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 5, 2015
    Assignee: Ford Global Technologies, LLC
    Inventor: Xiaogang Zhang